atg is an anti-thymocyte lymphocyte globulin, which is an immunosuppressive drug that prevents and inhibits the destruction of transplanted cells and tissues by the body through a specific immune response after clinical organ transplantation, and is generally indicated for the prevention and treatment of diseases such as pure red aplastic anemia and heavy aplastic anemia, including bone marrow transplantation.
atg does not treat leukemia because leukemia is a clonal disease of hematopoietic stem cells. The leukemia cells continue to multiply and proliferate, destroying the body’s normal hematopoietic function and invading other non-hematopoietic tissues and organs, resulting in the development of “blood cancers”.
Modern medical technology is so advanced that leukemia can be cured. Chemotherapy is generally the most common and effective treatment, using radiation to inhibit the spread of cancer cells and kill tumor cells, but it also kills normal cells, making the patient less immune and causing side effects such as dizziness, vomiting, hair loss, and ulcers.
Some patients with severe, uncontrollable disease will have a bone marrow transplant, but the risks after surgery are high.